A few months ago, they pretended to be an exploration team and were collecting various stones. They accidentally detected a stone that can bend light, which they called a light distribution stone.
Two people sneaked into the mine and when they used a flashlight to look around, they discovered that the light of the flashlight was bent.
"I didn't expect to find this kind of stone, but I don't know what its use is yet."
"Keep it for now, and eventually give it to the lord."
"Oh well."
On the way to the hotel. "I think we should keep this thing for ourselves, and we can still sell it for a good price. We were not sent to look for this kind of stone anyway. Just pretend we didn't find it."
"Put it here first and pick it up when you come back. They will definitely find it with the measuring instrument."
"Then go to the hotel first and let them check it. Then come back."
When we got to the hotel, a boss came to pick up something.
"Did you find something new? Don't hide it."
"It's all here. It's some electrodistribution rocks."
The leader uses an inspection device to scan vehicles and people. Then the electrodistribution stone was taken away.
The next day the two returned to the camphor tree, but they could not find the stone.
"It's really strange. We placed it next to this tree. Did you remember the wrong place?"
"This stone won't have legs to run away."
"Forget it, we don't know how to use this stone. Just throw it away."
Duan Zhu, Sun Shiji, and Wu Tian were on their way to Shengshi City when they saw something unusual about the lights in front of them. The light beam of the car light seemed to be bent by something, shining downward to the ground, and then bent to one side. Facing the nearby trees. They discovered light distribution stones, which are called gravity stones.
Later, they discovered that its characteristic is that it emits light that flickers on and off, and sometimes it can distort the light. A large amount of light jumps and propagates near it. It could be something like a tiny wormhole. Light enters from one place and comes out from another.
Duan Zhu believes that this kind of control is a kind of mapping. This kind of communication mapping is the communication between one area and another area, and it is one-way, that is, the sender has many points. There are many points on the receiving side. The sender sends it out, and the data reaches these points at the receiver. But the recipient cannot send the data back. There's a difference, it's multipoint-to-multipoint communication, and it's unidirectional.
Pu Lei said to Peng Qing: "We still have to go in and take a look. Don't tell Feng Bing."
Peng Qing said: "Okay."
They entered the Pillar Mine again and reached the end of the long and narrow passage. He looked around and saw a thin straight crack in one of the walls. He inserted the screwdriver and pried it open. A metal plate on it fell off, revealing some mechanical parts. Already mounted on the shaft are some regular gears. But there are some gaps in the middle, and the driving wheel cannot drive the driven wheel to rotate. There are also some ordinary gears and some variable gears below.
Gears cut by changing the relative position of the tool and the wheel blank are called displacement gears. The displacement method can be used to change the involute curvature radius to achieve the purpose of improving the gear transmission quality. The standard gear tooth thickness is equal to the tooth space width, the positive displacement tooth thickness is greater than the tooth space width, and the negative displacement tooth thickness is smaller than the tooth space width. In positive displacement, the tooth root height decreases and the tooth addendum height increases. On the contrary, negative displacement increases the tooth root height and decreases the tooth top height. Positive displacement tooth roots become thicker, and negative displacement tooth roots become narrower.
It is estimated that these gears need to be installed on appropriate shafts to form a complete transmission chain, so that the driving wheel can drive the driven wheel to rotate, and finally the secret door can be opened.
He compared, measured, installed and tested the tooth height and tooth thickness of each gear, and finally installed the gear on the appropriate shaft so that each two wheels could mesh properly. Press the start button, the driving gear drives each driven gear to rotate, and finally the secret door is opened.
They passed the secret door and went up a minecart track.
There was an automated trolley stuck on the guide rail. He pushed hard, but it couldn't move. He pressed the start button on it, but the motor just made a buzzing sound and could not start. It seems to be stuck somewhere.
The function of linear guide motion is to support and guide moving parts to perform reciprocating linear motion in a given direction. Depending on the friction properties, linear motion guide rails can be divided into sliding friction guide rails, rolling friction guide rails, elastic friction guide rails, fluid friction guide rails, etc. Linear bearings and linear shafts are matched. There is no other intermediate medium between the moving element and the fixed element of this linear guide, but rolling steel balls.
The connection between the two linear guide rails was misaligned, and the rolling steel balls leaked out and scattered all over the floor. Pu Lei picked up many steel balls, then stuffed them in, and restored the connection between the two linear guide rails to their original shape. He got on the automatic guided car and pressed the start button. Now he could ride the car up the guide rail.
Just like riding a roller coaster, the car moved quickly, and the uneven mountain walls flashed by. After a while, a dazzling light appeared in front of him, and it seemed that he was almost at the exit. After arriving at the exit, the terrain gradually became flat, and then the car slowly stopped.
Pu Lei saw engineering vehicles passing by one after another.
Pu Lei thought: "Why are there construction vehicles here?"
When he got outside, he saw a man directing people, so he asked, "How do the engineering vehicles pass here?"
The commander said: "This is also the company's vehicle. It comes from the north, passes through the mining area, and goes to the east to do construction work."
Pu Lei said: "Isn't this a mining area?"
The commander said: "This is also a tunnel. Go through here and get closer."
Pu Lei said: "I haven't heard that this is a tunnel. When was it built?"
The commander said: "The nearest one."
He asked Duan Zhu to pick him up.
Duan Zhu drove around and took a detour. They look at it on the highway. From west to east. The road on the right is full of mud. The road on the left is clean.
Duan Zhu said: "It must be because there is a lot of mud brought out from the mine."
Pu Lei said: "Why is the road on the left so clean?"
Duan Zhu asked: "Could it be that we just went east and never came back?"
Peng Qing said: "No way. There are so many construction vehicles, how could they just go over and not come back?"
Pu Lei said: "You don't have to run to the construction site every day, right? Aren't you leaving it at the construction site?"
Duan Zhu said: "There may be construction sites in the north."
Pu Lei said, "I'll go in and have a look."
Pu Lei quietly went in and saw a large metal door open, a construction vehicle come out, and then the door closed. It seemed that this was the exit. He circled around and found no entrance.
He stood nearby, waiting for the door to open, and then walked in quietly.
"The engineering vehicle just came out, and the door opened toward the outside. It seems that the door is one-way. There should be an entrance."
He walked around inside, and the air quality was not very low. No imports were found either, only exports.
He walked along where the construction trucks had come out and reached the center of the Pillar Mine.
He was surprised to see that in the middle of the pillar mine, a door opened, pushing the pillar mine aside. A rising ramp was revealed, and a construction vehicle drove out of the ramp.
There is a square box next to the door, which may be the mechanism to open the door.
He used a screwdriver to pry open the mechanism's cover. Some connecting rods are exposed inside, like a planar linkage mechanism that has not been connected.
